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Insights into the new cobalt (II) monosubstituted keggin-type polyoxomolybdate: synthesis, characterizations, and application in the catalytic degradation of crystal violet dye

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Abstract

In this study, a new Co(II)-substituted Keggin-type polyoxomolybdate was synthesized at room temperature and characterized by FT-IR, powder X-ray diffraction (PXRD), UV-visible spectroscopy, TG-DTA thermal analysis, single crystal X-ray diffraction technique and cyclic voltammetry study. The crystal packing exhibits non-conventional C−H···O and C−H···S hydrogen bonds which lead to a three-dimensional supramolecular framework. The catalytic property of compound (1) was positivity tested in the degradation of crystal violet dye (CV) investigated.

Graphical abstract

A new organic-inorganic compound based on Keggin anions and Cobalt (II)ions, namely [Co(C2H6OS)6]2[HPMo11O39Co(C2H6OS)] .2(C2H6OS) ·2.5(H2O) (1) was synthesized and characterized by single-crystal X-Ray diffraction, IR, thermal analyses and cyclic voltammetry. The catalytic ability of (1) for decolorization of Crystal violet dye from aqueous solutions has been investigated.

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Acknowledgments

The authors extend their appreciation to the Deanship of Scientific Research at King Khalid University for funding this work through the Research Group under grant number (R.G.P-1/ 3 /43).

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Correspondence to Chadlia Mchiri.

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Ghandour, Y., Mchiri, C., Mestiri, I. et al. Insights into the new cobalt (II) monosubstituted keggin-type polyoxomolybdate: synthesis, characterizations, and application in the catalytic degradation of crystal violet dye. J Chem Sci 134, 78 (2022). https://doi.org/10.1007/s12039-022-02071-z

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